COATING COMPOSITIONS AND PROCESSES FOR MAKING THE SAME

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United States of America Patent

APP PUB NO 20110152408A1
SERIAL NO

12995040

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Coating composition includes curable epoxy resin in solid form, curing agent for the epoxy resin, and filler. Further, there is a polyolefin containing component having a compatibilizer polymer that is a modified polyolefin, a mixture of a polyolefin or olefin copolymer with a functionalized rubber, or both. The modified polyolefin and functionalized rubber contain groups reactive with either the epoxy resin or the epoxy curing agent. A polyolefin-based portion that amounts to at least 50% by weight of the polyolefin containing component, and an epoxy-based portion that amounts to at least 50% by weight of the curable epoxy resin have viscosities such that the difference between the viscosity of the polyolefin-based portion and the viscosity of the epoxy-based portion, expressed as a percentage based on the lower of the two viscosities, is less than 40%. These viscosities are measured by ASTM D4440 at the Vicat softening points, as measured by ASTM D 1525.

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Patent Owner(s)

Patent OwnerAddress
SHAWCOR LTD25 BETHRIDGE ROAD REXDALE ON M9W 1M7

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cunningham, Nicolas Brampton, CA 5 19
Edmondson, Stephen J Oakville, CA 10 36
Wong, Dennis T H Toronto, CA 2 5

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